3又1/10+3又11/100+3又111/1000+3又1111/10000+3又11111/100000
问题描述:
3又1/10+3又11/100+3又111/1000+3又1111/10000+3又11111/100000
答
=15 (10000/100000 11000/100000 11100/100000 11110/100000 11111/100000)=15 (54321/100000)=15.54321